/* 
 * Copyright 2010-2011 Johannes Tuikkala <johannes.tuikkala@itmill.com>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.vaadin.webcamforvaadin;

import java.io.ByteArrayOutputStream;
import java.io.OutputStream;

import com.vaadin.terminal.StreamVariable;

/**
 * Stream variable implementation for WebCam use
 */
public class WebCamStreamVariable implements StreamVariable {
	private static final long serialVersionUID = -8879461127779495085L;

	ByteArrayOutputStream baos;

	private final WebCamForVaadin webCam;

	public WebCamStreamVariable(WebCamForVaadin webCam) {
		this.webCam = webCam;
	}

	@Override
	public OutputStream getOutputStream() {
		baos = new ByteArrayOutputStream();
		return baos;
	}

	@Override
	public boolean listenProgress() {
		return false;
	}

	@Override
	public void onProgress(StreamingProgressEvent event) {
	}

	@Override
	public void streamingStarted(StreamingStartEvent event) {
	}

	@Override
	public void streamingFinished(StreamingEndEvent event) {
		System.out.println("streamingFinished");
		webCam.imageReady();
	}

	@Override
	public void streamingFailed(StreamingErrorEvent event) {
		System.out.println("streamingFailed");
	}

	@Override
	public boolean isInterrupted() {
		return false;
	}
}
